US4042690AExpiredUtility
Method of combatting blowfly larvae
Est. expiryAug 22, 1995(expired)· nominal 20-yr term from priority
A01N 57/16A61K 31/675
34
PatentIndex Score
0
Cited by
1
References
5
Claims
Abstract
Ectoparasiticidal compositions and uses employing 0,0-dialkyl-0-pyridazine phosphoric and thionophosphoric acid esters are described. A typical embodiment is a composition for combatting blowflies containing diethyl-0-[1-phenyl-6-oxopyridazin-3-yl]phosphoric acid ester.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. The method of combatting infestation of animals by blowfly larvae which comprises applying to the infested animal a blowfly larvae biocidal amount of a compound of the formula: ##STR6## wherein R is alkyl of 1 to 4 carbon atoms; R 1 is hydrogen or nitro; and X is oxygen or sulfur.
2. The method according to claim 1 wherein the amount applied daily is from about 1 to about 100 mg per kg of body weight.
3. The method according to claim 1 wherein R is ethyl, R 1 is hydrogen and X is oxygen.
4. The method according to claim 1 wherein R is ethyl, R 1 is hydrogen and X is sulfur.
5. The method according to claim 1 wherein R is ethyl, R 1 is 4-nitro and X is sulfur.Cited by (0)
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